120 citations · 576 across the 38 of their papers we have counts for
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Spin tunnelling in Molecular Magnets
Anupam Garg
We study spin tunneling in magnetic molecules, with special reference to Fe8. The article aims to give a pedagogical discussion of what is meant by the tunneling of a spin, and how…
Spin tunnelling in mesoscopic systems
Anupam Garg
We study spin tunnelling in molecular magnets as an instance of a mesoscopic phenomenon, with special emphasis on the molecule Fe8. We show that the tunnel splitting between variou…
Diabolical Points in Molecular Magnets with a Four-Fold Easy Axis
Chang-Soo Park, Anupam Garg
We study the points of degeneracy (diabolical points) in magnetic molecules such as Mn_{12}-acetate that have an easy axis of four-fold symmetry. This is done for general magnetic…
Topological Quenching of Spin Tunneling in Mn_12-acetate Molecules
Chang-Soo Park, Anupam Garg
We investigate the topological quenching of spin tunneling in Mn_12-acetate molecules with an applied magnetic field along the hard axis. The model Hamiltonian describing this syst…
The Semiclassical Propagator for Spin Coherent States
Michael Stone, Kee-Su Park, Anupam Garg
We use a continuous-time path integral to obtain the semiclassical propagator for minimal-spread spin coherent states. We pay particular attention to the ``extra phase'' discovered…
Diabolical Points in Magnetic Molecules: An Exactly Solvable Model
Ersin Kececioglu, Anupam Garg
The magnetic molecule Fe_8 has been observed to have a rich pattern of degeneracies in its magnetic spectrum as the static magnetic field applied to the molecule is varied. The poi…